root/tags/release_0_0_6/libfreebob/src/libfreebobavc/ieee1394service.h

/* Ieee1394Service.cpp
 * Copyright (C) 2005 by Daniel Wagner
 *
 * This file is part of FreeBob.
 *
 * FreeBob is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * FreeBob is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with FreeBob; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA.
 */

#ifndef FREEBOBIEEE1394SERVICE_H
#define FREEBOBIEEE1394SERVICE_H

#include "fbtypes.h"

#include <libraw1394/raw1394.h>

class Ieee1394Service{
public:
    Ieee1394Service();
    ~Ieee1394Service();

    bool initialize( int port );

    int getPort()
        { return m_port; }
   /**
    * getNodecount - get number of nodes on the bus
    *
    * Since the root node always has
    * the highest node ID, this number can be used to determine that ID (it's
    * LOCAL_BUS|(count-1)).
    *
    * Returns: the number of nodes on the bus to which the port is connected.
    * This value can change with every bus reset.
    */
    int getNodeCount();

   /**
    * read - send async read request to a node and wait for response.
    * @node: target node
    * @addr: address to read from
    * @length: amount of data to read in quadlets
    * @buffer: pointer to buffer where data will be saved
    *
    * This does the complete transaction and will return when it's finished.
    *
    * Returns: truee on success or false on failure (sets errno)
    */
    bool read( fb_nodeid_t nodeId,
               fb_nodeaddr_t addr,
               size_t size,
               fb_quadlet_t* buffer );

   /**
    * write - send async write request to a node and wait for response.
    * @node: target node
    * @addr: address to write to
    * @length: amount of data to write in quadlets
    * @data: pointer to data to be sent
    *
    * This does the complete transaction and will return when it's finished.
    *
    * Returns: true on success or false on failure (sets errno)
    */
    bool write( fb_nodeid_t   nodeId,
                fb_nodeaddr_t addr,
                size_t        length,
                fb_quadlet_t  *data );


    fb_quadlet_t* transactionBlock( fb_nodeid_t nodeId,
                                    fb_quadlet_t* buf,
                                    int len );


    
    
private:
    raw1394handle_t m_handle;
    int             m_port;
};

#endif